marvel are starting to look over there shoulder
At what? 2 films?
Of course it doesn't have to be done the same way as Marvel. The point is they are doing all this just to compete with The Avengers. So they are rushing every character possible to make a Justice League film as quickly as possible. That's the bad part about it. Not that they aren't doing the exact same method as Marvel.
For example, introducing Wonder Woman in a movie about Superman and Batman. Where is she going to fit? Is it going to have her origin story? Is she just going to appear out of nowhere? Or just a cameo? Wonder Woman should have her own movie.
Then, there's Batman. Rebooting Batman so soon after his last movies just screams 'rushed'. Especially considering he will be introduced as the secondary character in Superman's movie.
Then of course there' the fact they have about 3 movies worth of cast members shoved in. Not to mention some of the awful casting, that looks like most of the characters will be 'reinterpreted' instead of being their classic roles (Gadot, Eisenberg especially).
And at the same time they have TV shows about Green Arrow, Flash and Gotham that they don't seem to have a clue whether or not it will tie in.
And I really don't get why Superman and Batman have to fight.
It's clear they didn't have a plan when they rebooted Green Lantern and Superman. Then when those movies were received poorly-mediocre it seems they suddenly thought 'oh shit, Marvel's way out in front, we have to do something quick!'
The point is they shouldn't be worrying about Marvel. Try and improve on Man of Steel first, then worry about Batman, Wonder Woman and the rest.